Therefore, the smaller crops of
postfeeding maggots, as those of young maggots, reduce the
chance of successfully amplifying DNA and obtaining a
genetic profile. Another factor affecting DNA analysis to be
considered is the lipid deposition that usually occurs in
maggots towards the end of the third instar since postfeeding
larvae show high lipid concentrations. In this respect, removal
of the maggot crop should be always preferred over
extraction of the entire maggot for genetic analysis of insect
gut contents.